Senior Patch Research Engineer

Key Responsibilities

• Patch Catalog Research & Authoring
• Research, author, and maintain patch metadata for third-party Windows applications across a broad software catalog.
• Identify new software releases, security updates, and version changes from vendor sources, changelogs, and security advisories (CVE/NVD).
• Map vendor releases to structured metadata schemas, including version strings, download URLs, detection logic, and installation parameters.
• Track software End-of-Life (EOL) dates and update catalog entries accordingly.
• Windows Patching & Installation Knowledge
• Document and validate silent installation parameters for diverse installer types (MSI, NSIS EXE, InnoSetup, WiX, etc.).
• Research and verify correct msiexec.exe flags, NSIS /S switches, and equivalent silent/unattended arguments per software.
• Determine accurate reboot behavior (Yes / No / Maybe) per installer type and document exit codes (success, reboot-required).
• Manually test patch installation in sandbox environments and verify detection logic post-install.
• Detection Logic & Registry Research
• Research and validate Windows registry keys used to detect installed software versions (Uninstall hive, vendor-specific keys, DisplayVersion, etc.).
• Identify and document file-based detection paths (FileVersion, ProductVersion attributes on key executables).
• Understand the difference between 32-bit and 64-bit registry views (WOW6432Node) and apply correct detection architecture per installer variant.
• Validate detection logic against fresh installs and upgrades across supported Windows versions.
• Backend Patch Tool Understanding